备份数据库，将此代码添加到函数中。主题中的php文件：

$all_posts = get_posts(array(
  \'numberposts\' => -1,
  \'post_type\'   => \'post\',
));

foreach($all_posts as $p)
  set_post_format($p->ID, \'standard\');

刷新删除代码或使用SQL命令：

UPDATE `term_relationships`
  SET term_taxonomy_id = \'standard_post_format_id\'
  WHERE term_taxonomy_id = \'gallery_post_format_id\'

更改standard_post_format_id 和gallery_post_format_id ID与term\\u taxonomy/terms表中的post格式名称匹配